Introduction to LS-PrePost 4.0 (workshop) Quanqing Yan, Philip Ho, LSTC 2014

Transcription

1 Introduction to LS-PrePost 4.0 (workshop) Quanqing Yan, Philip Ho, LSTC 04

2 Table of Contents SECTION WORKSHOPS Overview - General Operations Workshop Mesh Generation Workshop Pre-Processing Workshop 3-6 Post-Processing Workshop 7-8 Configuration Files - LS-PrePost Intro Livermore Software Technology Corporation

3 Overview 3

4 About LS-PrePost LS-PrePost is an advanced pre and post-processor designed specifically for LS-DYNA LS-PrePost is developed for Windows and Linux LS-PrePost is Free Core Functionality Full support of LS-DYNA keyword files Full support of LS-DYNA results files Robust handling of geometry data (new CAD engine) Pre-processing (meshing, model clean-up, entity creation) Post-processing (animation, fringe plotting, curve plotting) 4

5 Official Website User Group Online Resources Latest Release Version: ftp://ftp.lstc.com/outgoing/lsprepost/4./ Beta Version: Training notes: 5

6 Workshop General Operations 6

7 Load and view an LS-DYNA Keyword file... Launch a new session of LS-PrePost File > Open > LS-DYNA Keyword (select /workshop/belted.k) Use Shift + Left Click to rotate the model Click render buttons Workshop

8 Workshop Use the part selection interface... Go to Model SelPart ( Assembly and Select Part ) and select individual parts from the list Use Ctrl + Left Click to select multiple parts Click All to display all parts Toggle Beam / Shell / Solid / Disc / Sbelt Click SortBy button and turn on/off some check boxes in the setting columns in the Part Sort dialog Click the MatTypeName header to see the sorting effect 4 3 8

9 Workshop (continued...) Create a part group... Go to Model Groups Click Create (all displayed parts will be saved to Group_43 ) Go to Model SelPart (Assembly and Select Part) and manually turn off some parts Go to Model Groups Select Group_43 from the list and click Select 3 4 9

10 Workshop (continued...) Identify nodes and elements... Turn on the mesh (using the Mesh render button) Go to Element Tools Identify Select Node in the Identify interface and pick some nodes in the model to display their IDs Select Element in the Identify interface and pick some elements Toggle Elem Dir to display the N to N direction Click the Clear All button to clear all highlighted entities

11 Workshop (continued...) Modify part appearance... Go to Model Appearance Select any one of the drawing modes Hide / Edge / Shad / Wire in the Appearance interface Pick some parts in the model Toggle Thick in the Appearance interface and click AllVis Click the Zoom In render button (or hit Ctrl+Z) and zoom in on a shell part to verify that thickness is displayed 3 4

12 Workshop (continued...) Blank some elements... Go to Element Tools Blank Select Area in the General Selection interface and draw a box to blank some elements Click Reverse in the Blank interface Click Unblank All in the Blank interface Click the Assembly and Part (SelPart) render button Select 88 PSHELL from the list, click the Auto Center (AutCen) render button, and click Done in the Assembly and Part interface Toggle Prop (propagate) in the General Selection interface, select Ang: 5, and pick an element on the front of the torso 4 5 3

13 Workshop (continued...) Create a view... Go to Model Views Click Create (the current view will be saved as View_0 ) Rotate the model and click Create again (saved as View_0 ) Select View_0 from the list and click Select Select View_0 from the list and click Select 3 3

14 Workshop (continued...) Find a node and element... Go to Element Tools Find and select Show Only 6 Enter 439 in the text field and click Find Click Neighbors several times Click UnblankAll button Select Node in the Find interface Enter 5340 in the text field and click Find Click Neighbors several times

15 Workshop (continued...) Modify part color... Select Color Adjust color using the RGB sliders Select Set and pick some parts Select any color from color map Click Backg (only works when View > Background > Plain is selected) 4 3 5

16 Workshop (continued...) Modify part transparency... Select Transparency Pick the roof of the structure and adjust the slider Select Pick Through and pick through the roof to make some additional components transparent Click Visible and drag the slider to the far left Click Rstp button reset all parts to opaque 3 4 6

17 Workshop Mesh Generation 7

18 Create a solid cylinder... Launch a new session of LS-PrePost Go to Mesh Shape Mesher Select Entity: Cylinder_Solid Workshop Enter Radius: 5, Length: 0, Num Ele (Circumferential): 3, Num (Length): 0 Enter XYZ: 0,0, for position Click dirz (set direction to 0,0,) Click Create and Accept

19 Create a shell cylinder... Select Entity: Cylinder_Shell Workshop Enter Num Ele: 30 (leave other parameters unchanged) Enter XYZ: 5,0, for position Activate Top And Bottom (meshes ends of cylinder) Click Create and Accept Turn on the mesh (using the Mesh render button) Rotate the model such that you can see the crosssection of both cylinders (note the different cross-sectional mesh of the two parts)

20 Workshop (continued...) Create a mesh from 4 lines... Launch a new session of LS-PrePost File > Open > IGES File (select /workshop/test_4lmesh_curves.igs) Click Open in the IGES Read Options popup Go to Mesh N-Line Mesher Select Type: 4 Line Shell Pick the longest curve Pick the remaining curves in clockwise order Enter N: 4 and hit Enter Enter N: and hit Enter Enter N3: 0 and hit Enter Enter N4: 0 and hit Enter Click Mesh It and Accept 3 0 4

21 Workshop (continued...) Sweep one line along another... Launch a new session of LS-PrePost File > Open > IGES File (select /workshop/sweep_lines.igs) Click Open in the IGES Read Options popup Go to Curve Circle 3 Select Method: Parameters Click the. button next to Origin Point X Select Geometry in the Create Position interface Pick the endpoint of the remaining curve Click Done in the Create Position interface Enter Direction X Y Z: 0 0 Enter Radius: 50 and click Apply 7 4

22 Workshop (continued...) Sweep one line along another... Go to Mesh N-Line Mesher Select Type: Line sweep Select Mesh By: Number of elements Pick the circle as L Pick the red line as L Click the up arrow near L several times to increase N to 5 Click the up arrow near L several times to increase N to 0 Enter Part ID: Click Mesh It and Accept

23 Workshop (continued...) Auto mesh an STEP file using Auto mesh... Launch a new session of LS-PrePost File > Open > STEP File (select /workshop/bottle.stp) Click Open in the Open File Options popup Click the IsoMetric render button Go to Surf MidSurf Select Method By Soild Pick Soild Activate Stitch Mid-Surfs Click Apply Click Close

24 Auto mesh an STEP file using Auto mesh... Go to Model Assembly and Select Part ( SelPart ) and tap Assembly Inactivate Soild Click Done Workshop (continued...) 4

25 Workshop (continued...) Auto mesh an STEP file using Auto mesh... Go to Mesh AutoM Select mesh mode by Size Enter Elem Size :.0 Click Visible on Sel. geom interface Click Mesh Click Accept Click Done Click EdgGeo render buttons turn geometry off

26 Workshop 3 Model Editing 6

27 Merge duplicate nodes... Launch a new session of LS-PrePost Workshop 3 File > Open > LS-DYNA Keyword (select /workshop3/badmesh.k) Go to Element Tools Duplicate Nodes and turn on the mesh (using the Mesh render button) Activate Show Free Edges Enter Tolerance:.0 Click Show Dup Nodes (see figure) Click Merge Dup Nodes Click Accept Click Done

28 Workshop 3 Replace nodes... Go to Element Tool Node Editing Select Replace Select Area and MidPoint Zoom in the internal free edges area, select two nodes at a time for merging (by drawing a window) Click Accept Repeat 4 and 5 until all internal free edges have been eliminated

29 Workshop 3 (continued...) Create a tria element... Go to Element Tool Element Editing Select Create Select Elem Type: Shell Activate PID and pick the part Activate Tria Only Pick the 3 nodes to fill the final gap in the part Click Accept

30 Workshop 3 (continued...) Align nodes along a line... Go to Element Tool Node Editing Select Align Click the Right render button Click the Zoom In render button and zoom in as shown Pick nodes to form a line Pick the nodes in between Click Align Click Accept

31 Workshop 3 (continued...) Split elements... Go to Element Tool Element Editing Select Split/Merge Activate Constrain Adaptive Pick the elements around the hole as shown Click Apply Click Accept

32 Workshop 3 (continued...) Fill a hole... Go to Mesh Element Generation Select Shell Select Shell By: Fill_Holes Pick any node on the perimeter of the hole Click Create Click Accept

33 Workshop 3 (continued...) Align shell normals... Go to Element Tools Normals Select Show Normals (should be already selected) Click Visible in the General Selection interface Select Vector Size: 0.5 Select Auto Reverse Activate Pick Seed Pick any element that is red Click AutoRev Click Done

34 Workshop 3 (continued...) Save the modified input file... File > Save As > Save Keyword As... Click Browse Enter a file name (save as /workshop3/newmesh.k) Click Save 34

35 Workshop 4 Mesh Transformation 35

36 Workshop 4 Create nodes at circle centers... Launch a new session of LS-PrePost File > Open > LS-DYNA Keyword (select /workshop4/tube.k) Click the Wire render button Go to Element Tool Node Editing 3 Select Create Click Advanced Select 3PtCircle in the Create Position interface At one end of the large tube, pick 3 nodes on the perimeter and click Apply 5 4 Repeat for the other end of the large tube and both ends of the small tube Click Cancel in the Create Position interface Click Accept 36

37 Workshop 4 (continued...) Transform a mesh... Go to Element Tools Transform Select Transform Activate From Pick one center node of the small tube (as P) Pick the other center node of the small tube (as P) Pick any node on the end of the tube near P (as P3) Activate To and repeat the same for the large tube (P-P3 must be picked in a similar sequence) P3 P p p3 p P 37

38 Workshop 4 (continued...) Transform a mesh... Select ByPart in the General Selection interface Pick the small tube Click Save To Buffer Buffer5 in the General Selection interface Click Transform Click Accept 3 38

39 Workshop 4 (continued...) Translate a mesh... Go to Element Tools Transform Select Translate Select Direction: N-N Pick both center nodes of the large tube (to define Node and Node) Enter Translate Distance: Click Load From Buffer Buffer5 in the General Selection interface Click Tran + Click Accept Click Done in the Transform interface

40 Workshop 5 Create a Keyword File (Ball to Plate Impact) 40

41 Mesh a plate from IGES data... Launch a new session of LS-PrePost File > Open > IGES File (select /workshop5/plate.igs) Click Open in the IGES Read Options popup Go to Mesh Auto Mesher Enter Elem Size: 5 Pick the surface in graphics area Click Mesh Click Accept Mesh a sphere... Go to Mesh Shape Mesher Select Entity: Sphere_Solid Enter Radius: 50 Enter Density: 6 Enter Center Z: 55 Enter Target Name: ball Click Create and Accept Workshop 5 4

42 Workshop 5 (continued...) Define plate material... Go to Model Keyword Manager Select All Expand MAT Double-click 04-PIECEWISE_LINEAR_PLASTICITY Click NewID in the Keyword Input Form Enter TITLE= plate material, Enter RO= 7.8e-6, E= 00.0, PR= 0.3, SIGY= 0., ETAN=.0, FAIIL= 0. Click Accept Click Done 3 4 4

43 Workshop 5 (continued...) Define plate section... Expand SECTION Double-click SHELL Click NewID in the Keyword Input Form Enter TITLE= plate section Enter NIP= 5, T=.5 (and hit the Enter key) Click Accept Click Done

44 Workshop 5 (continued...) Import ball properties (material and section)... File > Import > LS-DYNA Keyword (select /workshop5/ball_properties.k) Click Import Offset in the Import File interface 44

45 Workshop 5 (continued...) Assign plate properties... Go to Model Part Data Select Mod Select S SHELL from the list Enter Part Title: plate Click SECID Select plate section in Link SECTION interface Click Done in Link SECTION interface Click MID Select plate material in Link MAT interface Click Done in Link MAT interface Click Accept

46 Workshop 5 (continued...) Assign ball properties... Go to Model Keyword Manager Expand PART Double-click PART Select ball in the Keyword Input Form Click the Link Button next to the SECID field, Select ball section then Done Click the Link Button next to the MID field, Select ball material then Done Click Accept Click Done

47 Workshop 5 (continued...) Create plate boundary SPCs... Go to Model Create Entity Expand Boundary Select Spc Select Cre Create Set Activate X, Y, and Z Click the Top render button Select Area in the General Selection interface Click and drag to select all plate edge nodes (select nodes on each edge separately) Click Apply

48 Workshop 5 (continued...) Create ball initial velocity... Expand Initial Select Velocity Select Cre Enter Vz: -0 Select Pick in the General Selection interface Select ByPart in the General Selection interface Pick the ball Click Apply

49 Workshop 5 (continued...) Create part set for contact... Expand Set Data Select *SET_PART Select Cre Enter Title: contact Click Visible in the General Selection interface Click Apply

50 Workshop 5 (continued...) Define contact... Go to Model Keyword Manager Select All then expand CONTACT Double-click AUTOMATIC_SINGLE_SURFACE Click NewID in the Keyword Input Form Set SSTYP: Click the Link Button next to the SSID field Select contact in the Link SET interface Click Done in the Link SET interface Click Accept Click Done

51 Workshop 5 (continued...) Set termination time... Expand CONTROL Double-click TERMINATION Enter ENDTIM: 0 in the Keyword Input Form Click Accept Click Done Set d3plot frequency... Expand DATABASE Double-click BINARY_D3PLOT Enter DT: in the Keyword Input Form Click Accept Click Done 5

52 Workshop 5 (continued...) Set ASCII output frequency... Expand DATABASE Double-click ASCII_option Enter Default DT: 0. (and hit the Enter key) Scroll down and activate GLSTAT (global statistics) Set BINARY: 3 for GLSTAT Activate MATSUM (material summary) Click Accept Click Done

53 Workshop 5 (continued...) Save keyword file... File > Save As > Save Keyword As... Deactivate BySubSystem Click Browse (save as /workshop5/ball_and_plate.k) then Save Click Advanced Click customize order: Expert Click Ok in the Advanced Setting interface Click Save in the Save Keyword interface 53

54 Workshop 5 (continued...) Compare a set of LS-DYNA Keyword files... Launch a new session of LS-PrePost File > Open > LS-DYNA Keyword (select /workshop5/compare/belted.k) File > Open > LS-DYNA Keyword (select /workshop5/compare/belted.k) Go to Model MSelect Select Compare Click in the st Model field and select model Click in the nd Model field and select model Click Compare

55 Workshop 5 (continued...) Compare a set of LS-DYNA Keyword files... Select the Common Keywords tab Examine the RED items to identify differences 55

56 Workshop 6 Create a Keyword File (S-Rail to Rigidwall Impact) 56

57 Import and mesh IGES surfaces... Launch a new session of LS-PrePost File > Open > IGES File (select /workshop6/channel.igs and flat.igs both) Click Open in the IGES Read Options popup Go to Mesh Auto Mesher Enter Elem Size: 6 Click Visible in the General Selection interface Click Mesh Click Accept Workshop 6 57

58 Workshop 6 Define section property... Go to Model Keyword Manager Select All Expand SECTION Double-click SHELL Click NewID in the Keyword Input Form Enter TITLE:.0mm Enter ELFORM: 6, T:.0 (and hit the Enter key) Click Accept and Done

59 Workshop 6 (continued...) Define material property... Expand MAT Double-click 04-PIECEWISE_LINEAR_PLASTICITY Click NewID in the Keyword Input Form Enter TITLE: Mild Steel Enter RO= 7.83e-6, E= 07.0, PR= 0.3, SIGY= 0., ETAN=.0 Click Accept Click Done

60 Workshop 6 (continued...) Assign section and material... Go to Model Part Data Select Assign Click All Click SECID Select.0mm in the Link SECTION interface Click Done in Link SECTION interface Click MID Select Mild Steel in the Link MAT interface Click Done in Link MAT interface Click Apply

61 Add mass to end of rail... Click the Top render button Workshop 6 (continued...) Click the Zoom In render button and zoom in on the right end of the rail Go to Model Create Entity Expand Element Select Mass Select Cre Enter Mass:.0 Select Area in the General Selection interface Click and drag to select row of nodes along the end of the rail Click Apply Select Show Select Label: MassValue Click Visible in the General Selection interface 6

62 Workshop 6 (continued...) Create constraints at end of rail... Expand Boundary Select Spc Select Cre Activate Y, Z, RX, RY, and RZ (everything except X) Select Area in the General Selection interface Click and drag to select all nodes where masses were added Click Apply

63 Workshop 6 (continued...) Create initial velocities at end of rail... Expand Initial Select Velocity Select Cre Enter Vx: -0.0 Select Area in the General Selection interface Select all nodes where SPCs were added Click Apply

64 Workshop 6 (continued...) Create a rigid wall... Expand Rigidwall Select Rigidwall Select Cre Select Planar Select NX (you may have to scroll down) Pick any node at the left end of the rail Select Tran Select X/L and enter Distance: 0 Click Tran - Click Apply

65 Workshop 6 (continued...) Create welds using a master weld file... Go to Mesh Spot Welding Select Format: Primer (from the drop-down menu) Click Open (select /workshop6/welds.spot) Click Open in the Read Options popup Select Properties: File Click Browse (select /workshop6/spot.conf) Click Open in the Read Options popup Click Create Click the Wire render button to see weld locations Click Accept

66 Set termination time... Go to Model Keyword Manager Expand CONTROL Double-click TERMINATION Enter ENDTIM: 0 in Keyword Input Form Click Accept Click Done Set d3plot frequency... Expand DATABASE Double-click BINARY_D3PLOT Enter DT: in Keyword Input Form Click Accept and Done Workshop 6 (continued...) 66

67 Workshop 6 (continued...) Set ASCII output frequency... Double-click ASCII_option Enter Default DT: 0. (and hit the Enter key) Activate GLSTAT Activate MATSUM Activate SWFORC (spotweld forces) Click Accept and Done Save keyword file... File > Save As > Save Keyword As... Click Browse (save as /workshop6/srail.k) Click Save in the Save Keyword interface 67

68 Workshop 7 Post-Processing 68

69 Load results and input file... Launch a new session of LS-PrePost File > Open > LS-DYNA Binary Plot (select /workshop7/d3plot), click Open Workshop 7 File > Open > LS-DYNA Keyword (select /workshop7/ball_and_plate.k), click Open Click Yes in the popup Click the Left render button Click Animate Forward (click the Anim render button first if necessary) Decrease the animation speed using the slider Generate a movie... File > Movie Select Format : JPEG Enter File Name: animation Click Start 69

70 Workshop 7(continued...) Cut a section plane... Go to Model Section Plane Click NormY Click Cut Click Options Select Line Width: 5 Rotate the model for an isometric view Click Animate Forward Click MP Anim Click Done

71 Create a fringe contour plots... Go to Post Fringe Component Click Stress Select von mises stress from the list Click the Top render button Click Animate Forward (if the animation is not already playing) Select plastic strain from the list Click Ndv Workshop 7(continued...) Select resultant displacement from the list Click Stop Animation Click the Shade Element (ShaEle) render button 7

72 Workshop 7(continued...) Identify nodes and elements by ID... Go to Element Tools Ident Select Node Select Area in the General Selection interface Pick some nodes by drawing a window Select Element Select Pick in the General Selection interface Pick some elements by clicking Click Clear Node Click Clear Elem 7

73 Workshop 7(continued...) Plot time history data... Go to Post History Select Nodal Select Z-displacement from the list Pick node on the ball and node on the plate Click Plot Click Quit in the Plot Window Select Element Select Effective Stress (v-m) from the list Pick an element on the plate Click Plot Click Quit in the Plot Window Click the Clear render button Clear 73

74 Workshop 7(continued...) Plot ASCII data... Go to Post ASCII Select glstat * from the top list Click Load Select the top 3 items in the bottom list Click Plot Click Quit in the Plot Window Select matsum * from the top list Click Load Click All Select -Kinetic Energy from the bottom list Click Plot Click Quit in the Plot Window 74

75 Workshop 7(continued...) Plot a measured value... Drag the horizontal slider to the first frame (click the Anim render button first if necessary) Turn on the mesh (using the Mesh render button) Go to Element Tools Measure Select Item: Dist NN Select length in the bottom list Pick node on the ball and node on the plate Click Plot Click Quit in the Plot Window Click Next State (in the animation interface) several times and note how the measured value is updated Click the Clear render button 75

76 Plot binout data... Go to Post Binout Click Load (select /workshop7/binout) Select the file from the Open File List Select glstat Select kinetic_energy Click Plot Select internal_energy Click Padd Workshop 7(continued...) 76

77 Workshop 7(continued...) Format a plot... Click Title in the Plot Window Enter Plot Title: Global Stats Enter X-Axis Label: Time (ms) Enter Y-Axis Label: Energy Enter Legend Title: Curves Click Apply Activate Modify Curve Legend Select kinetic_energy from the list Change name to Kinetic (and hit the Enter key) Select internal_energy from the list Change name to Internal (and hit the Enter key) Save curve data... Click Save in the Plot Window Click All next to the curve list Enter Filename : glstat_energy.crv Click Save in the bottom row of buttons 77

78 Workshop 8 Post-Processing 78

79 Workshop 8 View multiple models... Launch a new session of LS-PrePost File > Open > LS-DYNA Binary Plot (select /workshop8/example/d3plot), click Open File > Open > LS-DYNA Binary Plot (select /workshop8/elastic_plate/d3plot), click Open Click the Left render button Go to Model MSelect Select Translate Select -BALL AND ELSTIC PLATE from the list Activate Z only Enter Trans Dist: 50.0 Click the Left Arrow button Select Select Click and drag to select both items in the list Click the Auto Center (AutCen) render button Click the Hide Element (HidEle) render button Click Animate Forward

80 Create a cross plot... Launch a new session of LS-PrePost Workshop 8 (continued...) File > Open > LS-DYNA Binary Plot (select /workshop8/elastic_plate/d3plot), click Open Go to Post ASCII Select rcforc * Click Load Select Sl- from the middle list Select Z-force from the lower list Click Plot Click Scale in PlotWindow- Enter Y-scale: - Click Apply Activate Autofit Click Save enter Filename: force_vs_time.crv Click Save in the bottom row of buttons Click Quit in PlotWindow- 80

81 Workshop 8 (continued...) Create a cross plot (continued)... Go to Post XYPlot Click Add (select /workshop8/elastic_plate/disp_vs_time.crv) Select Cross Select X-Axis Select disp_vs_time.crv Click disp_vs_time.crv:060 Select Y-Axis Select force_vs_time.crv Click force_vs_time.crv:sl Click Plot

82 Set a reference point... Launch a new session of LS-PrePost Workshop 8 (continued...) File > Open > LS-DYNA Binary Plot (select /workshop8/belted/d3plot), click Open Click the Left render buttons Click Animate Forward Click Stop Go to Post Follow Pick any node on the structure Click Apply Click Done (in the Follow interface) Click Animate Forward 8

83 Workshop 8 (continued...) Use display entity... Launch a new session of LS-PrePost File > Open > LS-DYNA Binary Plot (select /workshop8/belted/d3plot), click Open File > Open > LS-DYNA Keyword (select /workshop8/belted/belted.k), click Open Click Yes in the popup Click the Right render button Go to Model Display Entity Expand Element Select Seatbelt_Accelerometer Select the first three items in the list Click the Anim render button Click Animate Forward 83

84 Workshop 8 (continued...) Calculate HIC (Head Injury Criteria)... Launch a new session of LS-PrePost File > Open > LS-DYNA Binary Plot (select /workshop8/settings_and_hic/d3plot), click Open Click the Left render button Go to Post Setting Select Hic/Csi Constants Select Time Units: msec (kg-mm-ms units) Select Gravity Constant: Click Apply and Done Go to Post ASCII Select nodout * Click Load Select from the middle list Select 4-hic36 from the lower list Click HicCsi Activate Apply pre-filter Click Plot

85 Modify range settings... Launch a new session of LS-PrePost Workshop 8 (continued...) File > Open > LS-DYNA Binary Plot (select /workshop8/range/d3plot), click Open Click the Left render button Drag the slider to the last frame Go to Post Fringe Component (FriComp) Select von mises stress from the top list Go to Post Fringe Range (FriRang) Select Avg: None Activate Reverse Colors Activate Ident Min and Max Enter No. Min/Max Entities: (and hit Enter) Select Level: 0 85

86 Workshop 8 (continued...) View velocity vectors... Launch a new session of LS-PrePost File > Open > LS-DYNA Binary Plot (select /workshop8/settings_and_hic/d3plot), click Open Click the Left render button Go to Post Vector Select Velocity from the drop down menu Click Apply Click Next State (in the animation interface) to step through the animation frame by frame 86

87 Colors, Groups, and Views... Launch a new session of LS-PrePost Workshop 8 (continued...) File > Open > LS-DYNA Binary Plot (select /workshop8/settings_and_hic/d3plot), click Open Click the Left render button Go to Model Part Color Click Lmap (select /workshop8/colors_groups_views/colors) Go to Model Groups Click Load (select /workshop8/colors_groups_views/groups) Select dummy from the list Click Select Go to Model Views Click Load (select /workshop8/colors_groups_views/views) Select View_0 from the list Click Select 87

88 Plot section plane forces... Launch a new session of LS-PrePost Workshop 8 (continued...) File > Open > LS-DYNA Binary Plot (select /workshop8/splane/csforce/d3plot), click Open Go To Model Section Plane Activate BaseNd Enter Node: 550 (and hit Enter) Click NormX (directional cosine) Click Cut Click Force Select Normal Force from the list Click Plot 88

89 Take section plane measurements... Launch a new session of LS-PrePost Workshop 8 (continued...) File > Open > LS-DYNA Binary Plot (select /workshop8/splane/measure/d3plot), click Open Click the Right render button Go to Model Section Plane Click NormY Click Cut In the animation controls, advance to State# 9 Click Meas in section plane(not Measur) Select Ln-Angle Click two points to form a line on the left top Click two points to form a line on the right top Click Options Select Line Width: Activate ShMesh (section plane as a mesh) Click Curr State Click Write to save the section data (writes keyword file with beam elements only) 89

90 Workshop 8 (continued...) Output dynain file... Launch a new session of LS-PrePost File > Open > LS-DYNA Binary Plot (select /workshop8/dynain_output/d3plot), click Open Go to Post Output Select Format: Dynain ASCII In the animation controls, advance to the last state Click Curr (current state) Click Write (writes a dynain ASCII file that contains stress, strain, and thickness information) 3 90

91 Save LS-PrePost database (post.db)... Launch a new session of LS-PrePost Workshop 8 (continued...) File > Open > LS-DYNA Binary Plot (select /workshop8/dynain_output/d3plot), click Open In the animation controls, advance to the desired state Go to Model Assembly and Part (SelPart) Select S and S 3 only Go to Element Tools Blank Select Area in the General Selection interface Select Out Draw a box around a portion of the model File > Save As > Save Post.db As In the Save PostProcess DB interface, select the data you want Click >> Enter a file name (select /workshop8/dynain_output/post.db) Click Write DB 9